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W. BLEISS. PROCESS OF ORNAMENTING ARTIFICIAL STONE.

No. 451,799 Patented May 5, 1891 Inventor. William B Zez'ss.

WM Qxg UNITED STATES PATENT OFFICE.

IVILLIAM BLEISS, OF KANSAS CITY, MISSOURI, ASSIGNOR OF ONE-HALF TO \VILLIAM B. KNIGHT, OF SAME PLACE;v DANIEL BONTECOU ADMINIS- TRATOR OF SAID \VILLIAM B. KNIGHT, DECEASED.

PROCESS OF ORNAMENTING ARTIFICIAL STONE.

SPECIFICATION forming part of Letters Patent No. 451,799, dated May 5, 1891.

Application filed March 21, 1890. Serial No. 344,762. (No specimens.)

To all whom/it may concern.-

Be it known that I, WILLIAM BLEISS, of Kansas City, in the county of Jackson and State of Missouri, have invented a certain new and useful Improved Process of Ornamenting Artificial Stone, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention consists in a process hereinafter described, by which I can incorporate into artificial stone any desired design and color while said stone is in a plastic state, and when the stone hardens the design will be a part of the same.

Figure I is an inverted perspective view showing the stone broken away in order to show the design. Fig. II is a perspective View showing the design incorporated in the stone.

This process may be used with any of the combinations of materials for forming artificial stone; but my preferred materials and the respective proportions of the same are approximately as follows: To one hundred pounds of Keene cement I add thirty-three pounds of fiuor-spar, six hundred pounds of sand, and a suitable amount of water. These ingredients are thoroughly mixed until the mass is in a plastic state. If desired, a cheaper class of cement may be used, such'as Portland or other similar hydraulic cements. The latter class of cements may be used for stone that it is designed to be used inside, or, in other words, stone that would not be exposed to the elements.

After the ingredients described above have been thoroughly mixed and reduced to a plastic state I form a suitable design, such as 1, on a block or other smooth surface, such as 2. The design is formed, preferably, of aniline colors. \Vhile the coloring-matter is still fresh I take the plastic material and deposit it upon the block carrying the design, the coloring-matter penetrating into the interstices of the plastic mass and becominga part of the same. The plastic mass is then left to harden into artificial stone, as shown at 3, Fig. I.

Of course as the mass hardens the coloringmatter is firmly fixed, and the design thereby imparted to the stone will be as lasting as the stone itself. It will be seen that the stone may be formed into slabs or any other desired shape and thus take the place of marble to a great degree 'for the purpose of decoration. A complete design may be made on each block. or slab, or the design may be extended to any desired length, any number of slabs or blocks being used to complete the same.

I claim as my invention 1. As an improved article of manufacture, an unburned artificial-stone slab or object composed of cement, and the cementitself being stained or colored in vplaces on the face of the slab in the form of a design or an ornament and such stain extending to particles of the cement beneath the surface of the slab or object, substantially as set forth.

2. The method of ornamenting artificial stone, which consists in forming the design with a stain or coloring-matter upon a suitable surface, depositing upon such surface and design while the stain is still fresh the artificial stone in a plastic state, and allowing said surface to remain in contact with the plastic stone until the stain has soaked into the body of the artificial stone, substantially as set forth.

3. The process of ornamenting artificial stone, which consists in forming the design with aniline'coloring-matter upon a suitable surface, depositing plastic cement upon said surface and design while said coloring-matter is yet fresh, and allowing said surface to remain in contact with the cement until the coloring-matter has stained the cement, substantially as set forth.

WILLIAM LEIss;

In presence of Ms. E. KNIGHT, ISAAC O. H. GILMORE. 

